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Finding the Fourth Proportional to 8,959.08, 12,362.83 and 4,979.95

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Solution

The fourth proportional to 8,959.08, 12,362.83 and 4,979.95 is: 6,871.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.08 : 12,362.83 = 4,979.95 : x
  2. Step 2: Convert to fraction form
    8,959.08/12,362.83 = 4,979.95/x
  3. Step 3: Cross multiply
    8,959.08x = 12,362.83 × 4,979.95
  4. Step 4: Simplify right side
    8,959.08x = 61,566,275.26
  5. Step 5: Solve for x
    x = 61,566,275.26/8,959.08
  6. Step 6: Final answer
    x = 6,871.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.